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Công thức there is

(+) There is + a/an + N số ít

(-) There isn't + a/an + N số ít.

(?) Is there + a/an + N số ít?

Yes, there is

No, there isn't 

Công thức there are

(+) There are + số lượng + N số nhiều 

(-) There aren't + số lượng + N số nhiều

(?) Are there + số lượng + N số nhiều?

Yes, there are

No, there aren't 

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2. Are there / Yes, there are

3. Is there / No, there isn't. There are two cats.

4. Are there / Yes, there are.

5. Are there / No, there aren't. There are three cows.

6. Is there / Yes, there is.

7. Is there / Yes, there is 

8. Are there / No, there aren't. There are four trees.

9. Are there / Yes, there are.

10. Is there / No, there isn't. There are two birds.

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